Question

when is a pneumatic drill commonly used?
o to perform precision work
o to drill in tight, small areas
o when electricity is unavailable
o in areas where noise is a problem

Explanation:

Pneumatic drills are powered by compressed air rather than electricity. So, they are commonly used when electricity is unavailable. Precision work is often done with more specialized tools. Drilling in tight, small areas might require a different - sized tool. And pneumatic drills can be noisy.

Answer:

when electricity is unavailable